EP 1066681 A1 20010110 - FEED FORWARD AMPLIFIER
Title (en)
FEED FORWARD AMPLIFIER
Title (de)
VORWÄRTSGEKOPPELTER VERSTÄRKER
Title (fr)
AMPLIFICATEUR A CORRECTION AVAL
Publication
Application
Priority
- GB 9900696 W 19990308
- GB 9804744 A 19980306
Abstract (en)
[origin: WO9945639A1] A feed forward arrangement for linearising a distorting element such as an amplifier. The arrangement has error correction means which produces an error correction signal that is combined with the output signal of the distorting element to produce a corrected output signal. A pilot signal is injected into the distorting element path so as to be processed by the error correction means and the presence of the pilot signal in the corrected output signal is monitored by comparison with the pilot signal so as to produce another error correction signal to adjust the error correction means. The pilot signal is advantageously derived from the distorting element input signal.
IPC 1-7
IPC 8 full level
H03F 1/32 (2006.01)
CPC (source: EP US)
H03F 1/3235 (2013.01 - EP US); H03F 1/3247 (2013.01 - EP US); H03F 1/3258 (2013.01 - EP US); H03F 2200/438 (2013.01 - EP US); H03F 2200/57 (2013.01 - EP US)
Citation (search report)
See references of WO 9945639A1
Designated contracting state (EPC)
DE FI FR SE
DOCDB simple family (publication)
WO 9945639 A1 19990910; AU 2737199 A 19990920; CN 1298570 A 20010606; EP 1066681 A1 20010110; GB 9804744 D0 19980429; JP 2002506306 A 20020226; US 6429738 B1 20020806
DOCDB simple family (application)
GB 9900696 W 19990308; AU 2737199 A 19990308; CN 99805432 A 19990308; EP 99907737 A 19990308; GB 9804744 A 19980306; JP 2000535086 A 19990308; US 62357601 A 20010226